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Araki Lab
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A lab that explores information processing in the brain through EEG analysis and neural circuit simulation.
AboutAbout the lab
Uncovering how the brain processes information
The Araki Lab studies how the brain processes information.
Based on the view that the dynamical systems of neural networks give rise to the brain's cognitive functions, the lab aims to elucidate the mechanisms by which those functions emerge.
According to the research page on the lab website (as written around 2022), the lab approaches, through both theory and experiment, the problem of motor intention: how the brain forms plans to move and then initiates action.
One of the lab's policies is to act proactively, so students choose their own research topics and write their own research proposals.
Key terms
- Neural network
- A network of circuits formed by many connected neurons.
- Dynamical system
- A system that describes mathematically how a state changes over time.
- EEG (electroencephalogram)
- A recording of the brain's electrical activity, measured on the surface of the head.
ResearchResearch themes
The main theme of this lab is to clarify how the brain processes information. Assuming that the dynamical systems of neural networks give rise to the brain's cognitive functions, the lab aims to elucidate the underlying mechanisms through two approaches: observation, such as EEG recording, and simulation.
*Illustrative imageVoluntary action studied with EEG
The lab conducts psychological experiments and observes real brains. By analyzing in detail the EEG recorded as the brain starts preparing to act, it aims to clarify how the circuits for voluntary action are driven.
*Illustrative imageNeural circuit simulation
This is a modeling approach that imitates the structure and dynamical systems of the brain's neural networks. Using computers, the lab examines the properties of mathematical models at the onset of voluntary action, in order to clarify the brain's emergent information-processing functions.
MembersFaculty
The Araki Lab's members consist of faculty, postdoctoral researchers, secretaries, research students, and master's and undergraduate students.As of 2025
- ProfessorOsamu Araki
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “EEG electrode” Gspilich2 / CC BY-SA 3.0 (cropped)
- Voluntary action studied with EEG: “Control drone by eeg” Qwert5 / CC BY-SA 4.0 (cropped)
- Neural circuit simulation: “PLoSBiol4.e126.Fig6fNeuron” Wei-Chung Allen Lee, Hayden Huang, Guoping Feng, Joshua R. Sanes, Emery N. Brown, Peter T. So, Elly Nedivi / CC BY 2.5 (cropped)
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